Decorative extrusion



FIG. 1 is an end elevational view of the decorative extrusion showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right-side elevational view thereof, the left side elevational view being a mirror image thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a decorative extrusion, as shown and described. 